My 06 I whent with the 4 -Polk 6X9's and 1 -4 channel 800w amp for the 6x9's, got some connectors just like the factory for my harness, used 8 wires 14 awg wire, It rocks great with the factory speakers in the boat

Ladd does supply Skiers choice with the connectors, If you notice you see these things are everywhere from cars to trucks, Its a nice factory look, also it matches the other side that came with the boat